package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    /**
     * 动态查询购物车
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 插入
     * @param shoppingCart
     */
    void insert(ShoppingCart shoppingCart);
    /**
    更新
     */
    @Update("update shopping_cart set number=#{number} where id= #{id}")
    void updateNumber(ShoppingCart shoppingCart);

    @Delete("delete from shopping_cart where user_id =#{userId}")
    void deleteByUserId(Long userId);

    @Delete("delete from shopping_cart where id =#{id}")
    void deleteById(Long id);

    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);

}





































